This viewgraph presentation provides information on several types of spacecraft tethers, and possible applications for them. The tethers profiled include: 1) Mechanical tethers; 2) Electrodynamic (ED) tethers; 3) Momentum eXchange Electrodynamic Reboost (MXER) tethers; 4) Synergistic technologies. Tethers can have low Earth orbit (LEO), lunar, and interplanetary applications.